1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * zfcp device driver 4 * 5 * External function declarations. 6 * 7 * Copyright IBM Corp. 2002, 2018 8 */ 9 10 #ifndef ZFCP_EXT_H 11 #define ZFCP_EXT_H 12 13 #include <linux/types.h> 14 #include <scsi/fc/fc_els.h> 15 #include "zfcp_def.h" 16 #include "zfcp_fc.h" 17 18 /* zfcp_aux.c */ 19 extern struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *, u64); 20 extern struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *); 21 extern struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *, u64, u32, 22 u32); 23 extern void zfcp_sg_free_table(struct scatterlist *, int); 24 extern int zfcp_sg_setup_table(struct scatterlist *, int); 25 extern void zfcp_adapter_release(struct kref *); 26 extern void zfcp_adapter_unregister(struct zfcp_adapter *); 27 28 /* zfcp_ccw.c */ 29 extern struct ccw_driver zfcp_ccw_driver; 30 extern struct zfcp_adapter *zfcp_ccw_adapter_by_cdev(struct ccw_device *); 31 extern void zfcp_ccw_adapter_put(struct zfcp_adapter *); 32 33 /* zfcp_dbf.c */ 34 extern int zfcp_dbf_adapter_register(struct zfcp_adapter *); 35 extern void zfcp_dbf_adapter_unregister(struct zfcp_adapter *); 36 extern void zfcp_dbf_rec_trig(char *, struct zfcp_adapter *, 37 struct zfcp_port *, struct scsi_device *, u8, u8); 38 extern void zfcp_dbf_rec_trig_lock(char *tag, struct zfcp_adapter *adapter, 39 struct zfcp_port *port, 40 struct scsi_device *sdev, u8 want, u8 need); 41 extern void zfcp_dbf_rec_run(char *, struct zfcp_erp_action *); 42 extern void zfcp_dbf_rec_run_lvl(int level, char *tag, 43 struct zfcp_erp_action *erp); 44 extern void zfcp_dbf_rec_run_wka(char *, struct zfcp_fc_wka_port *, u64); 45 extern void zfcp_dbf_hba_fsf_uss(char *, struct zfcp_fsf_req *); 46 extern void zfcp_dbf_hba_fsf_res(char *, int, struct zfcp_fsf_req *); 47 extern void zfcp_dbf_hba_bit_err(char *, struct zfcp_fsf_req *); 48 extern void zfcp_dbf_hba_def_err(struct zfcp_adapter *, u64, u16, void **); 49 extern void zfcp_dbf_hba_basic(char *, struct zfcp_adapter *); 50 extern void zfcp_dbf_san_req(char *, struct zfcp_fsf_req *, u32); 51 extern void zfcp_dbf_san_res(char *, struct zfcp_fsf_req *); 52 extern void zfcp_dbf_san_in_els(char *, struct zfcp_fsf_req *); 53 extern void zfcp_dbf_scsi(char *, int, struct scsi_cmnd *, 54 struct zfcp_fsf_req *); 55 56 /* zfcp_erp.c */ 57 extern void zfcp_erp_set_adapter_status(struct zfcp_adapter *, u32); 58 extern void zfcp_erp_clear_adapter_status(struct zfcp_adapter *, u32); 59 extern void zfcp_erp_adapter_reopen(struct zfcp_adapter *, int, char *); 60 extern void zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int, char *); 61 extern void zfcp_erp_set_port_status(struct zfcp_port *, u32); 62 extern void zfcp_erp_clear_port_status(struct zfcp_port *, u32); 63 extern int zfcp_erp_port_reopen(struct zfcp_port *, int, char *); 64 extern void zfcp_erp_port_shutdown(struct zfcp_port *, int, char *); 65 extern void zfcp_erp_port_forced_reopen(struct zfcp_port *, int, char *); 66 extern void zfcp_erp_set_lun_status(struct scsi_device *, u32); 67 extern void zfcp_erp_clear_lun_status(struct scsi_device *, u32); 68 extern void zfcp_erp_lun_reopen(struct scsi_device *, int, char *); 69 extern void zfcp_erp_lun_shutdown(struct scsi_device *, int, char *); 70 extern void zfcp_erp_lun_shutdown_wait(struct scsi_device *, char *); 71 extern int zfcp_erp_thread_setup(struct zfcp_adapter *); 72 extern void zfcp_erp_thread_kill(struct zfcp_adapter *); 73 extern void zfcp_erp_wait(struct zfcp_adapter *); 74 extern void zfcp_erp_notify(struct zfcp_erp_action *, unsigned long); 75 extern void zfcp_erp_timeout_handler(struct timer_list *t); 76 77 /* zfcp_fc.c */ 78 extern struct kmem_cache *zfcp_fc_req_cache; 79 extern void zfcp_fc_enqueue_event(struct zfcp_adapter *, 80 enum fc_host_event_code event_code, u32); 81 extern void zfcp_fc_post_event(struct work_struct *); 82 extern void zfcp_fc_scan_ports(struct work_struct *); 83 extern void zfcp_fc_incoming_els(struct zfcp_fsf_req *); 84 extern void zfcp_fc_port_did_lookup(struct work_struct *); 85 extern void zfcp_fc_trigger_did_lookup(struct zfcp_port *); 86 extern void zfcp_fc_plogi_evaluate(struct zfcp_port *, struct fc_els_flogi *); 87 extern void zfcp_fc_test_link(struct zfcp_port *); 88 extern void zfcp_fc_link_test_work(struct work_struct *); 89 extern void zfcp_fc_wka_ports_force_offline(struct zfcp_fc_wka_ports *); 90 extern int zfcp_fc_gs_setup(struct zfcp_adapter *); 91 extern void zfcp_fc_gs_destroy(struct zfcp_adapter *); 92 extern int zfcp_fc_exec_bsg_job(struct bsg_job *); 93 extern int zfcp_fc_timeout_bsg_job(struct bsg_job *); 94 extern void zfcp_fc_sym_name_update(struct work_struct *); 95 extern unsigned int zfcp_fc_port_scan_backoff(void); 96 extern void zfcp_fc_conditional_port_scan(struct zfcp_adapter *); 97 extern void zfcp_fc_inverse_conditional_port_scan(struct zfcp_adapter *); 98 99 /* zfcp_fsf.c */ 100 extern struct kmem_cache *zfcp_fsf_qtcb_cache; 101 extern int zfcp_fsf_open_port(struct zfcp_erp_action *); 102 extern int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *); 103 extern int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *); 104 extern int zfcp_fsf_close_port(struct zfcp_erp_action *); 105 extern int zfcp_fsf_close_physical_port(struct zfcp_erp_action *); 106 extern int zfcp_fsf_open_lun(struct zfcp_erp_action *); 107 extern int zfcp_fsf_close_lun(struct zfcp_erp_action *); 108 extern int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *); 109 extern int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *, 110 struct fsf_qtcb_bottom_config *); 111 extern int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *); 112 extern int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *, 113 struct fsf_qtcb_bottom_port *); 114 extern void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *); 115 extern int zfcp_fsf_status_read(struct zfcp_qdio *); 116 extern int zfcp_status_read_refill(struct zfcp_adapter *adapter); 117 extern int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *, struct zfcp_fsf_ct_els *, 118 mempool_t *, unsigned int); 119 extern int zfcp_fsf_send_els(struct zfcp_adapter *, u32, 120 struct zfcp_fsf_ct_els *, unsigned int); 121 extern int zfcp_fsf_fcp_cmnd(struct scsi_cmnd *); 122 extern void zfcp_fsf_req_free(struct zfcp_fsf_req *); 123 extern struct zfcp_fsf_req *zfcp_fsf_fcp_task_mgmt(struct scsi_cmnd *, u8); 124 extern struct zfcp_fsf_req *zfcp_fsf_abort_fcp_cmnd(struct scsi_cmnd *); 125 extern void zfcp_fsf_reqid_check(struct zfcp_qdio *, int); 126 127 /* zfcp_qdio.c */ 128 extern int zfcp_qdio_setup(struct zfcp_adapter *); 129 extern void zfcp_qdio_destroy(struct zfcp_qdio *); 130 extern int zfcp_qdio_sbal_get(struct zfcp_qdio *); 131 extern int zfcp_qdio_send(struct zfcp_qdio *, struct zfcp_qdio_req *); 132 extern int zfcp_qdio_sbals_from_sg(struct zfcp_qdio *, struct zfcp_qdio_req *, 133 struct scatterlist *); 134 extern int zfcp_qdio_open(struct zfcp_qdio *); 135 extern void zfcp_qdio_close(struct zfcp_qdio *); 136 extern void zfcp_qdio_siosl(struct zfcp_adapter *); 137 138 /* zfcp_scsi.c */ 139 extern struct scsi_transport_template *zfcp_scsi_transport_template; 140 extern int zfcp_scsi_adapter_register(struct zfcp_adapter *); 141 extern void zfcp_scsi_adapter_unregister(struct zfcp_adapter *); 142 extern struct fc_function_template zfcp_transport_functions; 143 extern void zfcp_scsi_rport_work(struct work_struct *); 144 extern void zfcp_scsi_schedule_rport_register(struct zfcp_port *); 145 extern void zfcp_scsi_schedule_rport_block(struct zfcp_port *); 146 extern void zfcp_scsi_schedule_rports_block(struct zfcp_adapter *); 147 extern void zfcp_scsi_set_prot(struct zfcp_adapter *); 148 extern void zfcp_scsi_dif_sense_error(struct scsi_cmnd *, int); 149 150 /* zfcp_sysfs.c */ 151 extern const struct attribute_group *zfcp_unit_attr_groups[]; 152 extern struct attribute_group zfcp_sysfs_adapter_attrs; 153 extern const struct attribute_group *zfcp_port_attr_groups[]; 154 extern struct mutex zfcp_sysfs_port_units_mutex; 155 extern struct device_attribute *zfcp_sysfs_sdev_attrs[]; 156 extern struct device_attribute *zfcp_sysfs_shost_attrs[]; 157 158 /* zfcp_unit.c */ 159 extern int zfcp_unit_add(struct zfcp_port *, u64); 160 extern int zfcp_unit_remove(struct zfcp_port *, u64); 161 extern struct zfcp_unit *zfcp_unit_find(struct zfcp_port *, u64); 162 extern struct scsi_device *zfcp_unit_sdev(struct zfcp_unit *unit); 163 extern void zfcp_unit_scsi_scan(struct zfcp_unit *); 164 extern void zfcp_unit_queue_scsi_scan(struct zfcp_port *); 165 extern unsigned int zfcp_unit_sdev_status(struct zfcp_unit *); 166 167 #endif /* ZFCP_EXT_H */ 168